You should probably learn the abilities by heart. There are not that many I recomend Hoshiko's repair ability and weapon jamming drones. Subverters damper field, and iconis guardian's repel and shield abilities also work very well. Those are the best and most effective.
As far as non support abilities go, both Tec and Vasari HC abilities are great for hunting down carriers. LRM aoe missile ability is also swell, not so for the Assailant one, as it means they have to stay in place. Illuminator illusion is meh, geenrally waste of research.